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CN102216399B - Silanes blend - Google Patents

Silanes blend Download PDF

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Publication number
CN102216399B
CN102216399B CN200980140852.8A CN200980140852A CN102216399B CN 102216399 B CN102216399 B CN 102216399B CN 200980140852 A CN200980140852 A CN 200980140852A CN 102216399 B CN102216399 B CN 102216399B
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composition
group
formula
silicon fluoride
condensation product
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CN102216399A (en
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R·察斯特劳
R·丹策布林克
P·C·霍普菲尔德
S·J·里德
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Dow Silicones Corp
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Dow Corning Corp
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04Polysiloxanes
    • C08L83/08Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04Polysiloxanes
    • C09D183/08Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C04B41/4922Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
    • C04B41/4933Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane containing halogens, i.e. organohalogen silanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • C08G77/22Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/26Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Silicon Polymers (AREA)
  • Civil Engineering (AREA)

Abstract

The present invention relates to a composition comprising at least two fluorosilanes and at least one aminosilane, a condensation product of said fluorosilanes and said aminosilane, and a surface protective agent made thereof.

Description

The silane blend
The present invention relates to contain the composition of at least two kinds of different silicon fluorides and aminosilane, the condensation product of described silicon fluoride and described aminosilane and surface protectant prepared therefrom.
Silane for example is used for building protective as sanitas, anti-graffiti dose and water repllents on marble, sandstone, concrete, grouan, sand limestone, terra-cotta, clinker tile, split face block or the brick in substrate.Use treating product needs water-based preferably and subacidity slightly for these.
Fluorinated silane is refused water and refuses oily aspect to demonstrate best performance at the same time.This fluorinated silane has several shortcomings up to now.At first, they are not easy and form stable solution, emulsion or dispersion liquid at 20 ℃ of following specific inductivity greater than 30 solvent.Second, the employed most of fluorinated silanes of building protective can discharge Perfluorocaprylic Acid (PFOA), find that Perfluorocaprylic Acid continues to exist and biological accumulation in animal and human's class tissue, and in liver, accumulate, wherein it suppresses Selenoperoxidase in liver, a kind of for Triiodothyronine transforms important selenoprotein, thereby also cause cancer (Occup Environ Med 60 (10): 722-9 (2003); Int J Cancer 78 (4): 491-5 (1998)).
US6054601A discloses the long-chain perfluorination silane of experience reaction in water-bearing media and the composition of aminosilane.
EP0738771A1 discloses a kind of aqueous composition, and it comprises long-chain perfluorination silane and aminosilane.Describe the composition that contains less than 90% water and had the shelf unstable.
US5442011A discloses the long-chain perfluorination silane of experience reaction in water-bearing media and the composition of aminosilane.
WO2007/048745A1 discloses the mixture of silicon fluoride and aminosilane.
Therefore, problem of the present invention finally provides stable and nontoxic surface-protective agent, thus good water and the oil repellent refused that causes in the high solvent system of specific inductivity, sending.
In first embodiment, by comprising the following substances reactive composition of (especially being formed by following substances), solve problem of the present invention:
(a) have at least two kinds of different silicon fluorides: R of same general formula I separately Tf-SiX 3(formula I),
Wherein X be selected from alkoxyl group, halogen group, oximido, carboxyl, phenol oxygen base (phenoxide) and polyether group and
R TfBe straight chain, side chain or the ring-type residue of general formula I I or III:
-Y-R f(formula II), or-Y-(SiR 1R 2O) xSiR 1R 2-Y-R f(formula III),
Wherein Y is selected from-(CH 2) n-,-CO 2-,-O-,-CONH-,-Ph-,-SO 2-and-SO 2Divalence organic moiety among the NH-, wherein n is integer 1-30, R fBe the perfluorinated alkylidene of C2-C7 straight or branched, the difference of wherein said silicon fluoride is R fIn carbonatoms differ at least 2, R 1And R 2Be independently selected from the organic residue of unit price, x be integer 0-5 and
(b) and the aminosilane of at least a general formula I V: R a-SiR 3R 4R 5(formula IV),
R wherein aBe contain 1-7 carbon atom and at least one primary, secondary, uncle or season amino, straight chain, side chain or the cyclic alkyl residue of preferred protonated amino, R 3And R 4Be independently selected from-R a,-OR 6And/or-R 6And
R 5Be-OR 6, and R 6Be straight chain, side chain or the cyclic alkyl residue that contains 1-3 carbon atom.
In the present invention, the protonated positive charge that must not mean on nitrogen-atoms.It only means that at least one hydrogen atom links to each other with nitrogen-atoms.
Advantageously, two kinds of different silicon fluorides are wherein to have the R of less carbon atom fThe silicon fluoride of base and the R that wherein has more carbon atom fThe weight ratio of the silicon fluoride of base is that 0.7-1.3 exists.Be surprisingly found out that the mixture of this silicon fluoride causes hydrophobicity and the oleophobic property more much better than expection.
Known up to now, for example, R wherein fBe C 6F 13The function ratio R wherein of silicon fluoride of the present invention fBe C 4F 9Silicon fluoride of the present invention much better.Yet also known silicon fluoride with even number of carbon atoms is more expensive, and carbochain is more long.With regard to the hydrophobic of silicon fluoride mixture and oleophobic performance, will be understood that the weight ratio that depends on different silane, the performance linear change.
Astoundingly, the inventor finds, for example, and R wherein fBe C 6F 13Silicon fluoride of the present invention and R wherein fBe C 4F 9The function and R wherein of uniform mixture of silicon fluoride of the present invention fBe C 6F 13Silicon fluoride of the present invention about the same good, and more much better than the intermediate value of performance level between these two kinds of silane of expection.These discoveries obtain carrying out and the confirmation of many experiments of reporting in " embodiment " part.
Preferably, R fBeing the straight chain perfluorinated alkylidene, with at least two kinds of different silane, is respectively C independently 4And C 6Base.
Composition of the present invention is " non-water " preferably.In the present invention, " non-water " refers to not add extra water.This is not precluded within common trace water in the parent material, adds water in the reaction system but get rid of.Claim of the present invention relates to the undiluted composition that does not add water.This also is not precluded within subsequently stage and adds water.Its advantage is, compares with prior art combinations, and weight is light and handle than being easier to, and this is because under the water-reducible situation of no use, can not these known compositions of acquisition.In addition, be surprisingly found out that shelf-life is much better under the situation of not adding water.
Preferably, composition comprises the water less than 1wt%, especially preferably less than 0.1wt% water.This is especially favourable, because find, moisture composition can cause hydrolyzable condensation product and surface-protective agent hardly.Compare with the discovery among the EP0738771A1, be surprisingly found out that, the stabilizing solution that has the silicon fluoride of at least 8 carbon atoms with water with in fluoridizing chain, for example the composition among the EP07387771A1 is compared, adopt wherein under the fluorinated alkyl silane situation of carbon chain lengths less than 8 carbon atoms, non-aqueous composition of the present invention demonstrates high stability and shelf-life, this be because its water-content low due to.
R 5And R 6Preferably identical or different.These examples of groups are C1-C30 straight or branched alkylidene groups, contain the group of aromatic hydrocarbons, contain the group of aminoalkyl and contain the group of fluoroalkyl.
Advantageously, X is the halogen that is selected among F, Br, Cl and the I, alkoxyl group OR 7(R wherein 7Be C1-C22 straight or branched alkylidene group), oximido R 8R 9C=N-O (R wherein 8And R 9Be independently selected from C1-C30 straight or branched alkylidene group, wherein R 8And R 9Can be identical or different), carboxyl R 10CO 2(R wherein 10Be C1-C30 straight or branched alkylidene group) phenol oxygen base M-Ph-O-(wherein M is hydrogen or unit price organic group), or contained one or more following repeated structural unit (CH by being selected from of C1-C30 straight or branched alkylidene group end-blocking 2CH 2O) qOr (CH 3CHCH 2O) qThe polyether group (wherein q is that scope is the numerical value of 1-100) of polyalkylene oxide.
Preferably, Y is the part that is selected from following :-(CH 2) 0-,-CO 2-,-(CH 2) o-CO 2-(CH 2) m-,-(CH 2) o-O-(CH 2) m,-(CH 2) o-CONH-(CH 2) m,-(CH 2) 0-Ph-(CH 2) m,-(CH 2) 0-SO 2-(CH 2) mWith-(CH 2) o-SO 2NH-(CH 2) m,-SO 2-O-,-SO 2NH-,-CH 2=CH-and-CH 2=CH-(CH 2) 0-, wherein o is that scope is the numerical value of 1-30, and m is that scope is the numerical value of 0-30, and especially wherein divalent organic group also can contain branched alkylidene.
Y-R fCan preferably include the unit of starting olefin and be preferably the residue that is selected from following:
(CH 2) 2R f,CH 2=CH-R f
(CH 2) 6Rf,CH 2=CH(CH 2) 4Rf,
(CH 2) 3O(CH 2) 2R f,CH 2=CHCH 2O(CH 2) 2R f
(CH 2) 10CO 2(CH 2) 2R f,CH 2=CH(CH 2) 8CO 2(CH 2) 2R f
(CH 2) NHCOR f, and CH 2=CHCH 2NHCOR f
R fBe C2-C7 straight or branched perfluorinated alkylidene, especially be selected from CF 3CF 2-, CF 3(CF 2) 3-, (CF 3) 2CF-, C 4F 9-or C 6F 13-.Preferably, R fComprise 3-7 carbon atom.
If for each silicon fluoride, R fComprise 4 and 6 carbon atoms respectively, then the present invention is especially favourable, and this is because the gained surface-protective agent can discharge PFOA scarcely and because find that oil repellent is best in this scope.
Preferably, in composition, the R among the formula I fThe molar ratio range of the amino among base and the formula IV is 2: 1-6: 1, and especially scope is 2.5: 1-4: 1.Discovery is under this mol ratio situation, and in having the solution of 20 ℃ of specific inductivity of measuring down at least 30 solvent, this ratio is especially stable.
R aAdvantageously comprise and the as many at least carbon atom of the longest residue of described silicon fluoride, this is because found to obtain the most stable solution, emulsion or dispersion liquid.
Preferably, maximum one, especially not having residue X is R fOr-CH 2-CH 2-R f, and/or maximum one, R especially 3, R 4And R 5None is R a, because can realize the high hydrophobicity of surface treated material and the good stability for the treatment of soln, emulsion or dispersion liquid.
The amount of described silicon fluoride in composition advantageously can be in the 40-75wt% scope and the amount of described aminosilane in composition advantageously can be in the 10-30wt% scope.
Preferably, composition of the present invention comprises that scope is at least a acid of 1-90wt%, even preferred scope is 20-50wt%, and most preferred scope is 30-40wt%.
Composition of the present invention can comprise the extra solvent system that contains single solvent or solvent mixture, and wherein solvent system is at least 30 at 20 ℃ of specific inductivity of measuring down.Especially advantageously be selected from alcohol, acetone, water, solvent or solvent mixture in ether or the N-methylformamide.The amount of described solvent system in composition preferably can be in the 4-20wt% scope.
X, R 3, R 4And/or R 5Preferably alkoxyl group, especially oxyethyl group or methoxyl group are because the gained condensation product causes demonstrating advantages of higher stability because of crosslinked preferably between described silicon fluoride and the described aminosilane.
Described amino is end group preferably, and in the case, this residue is not ring-type, namely amino be connected on the primary carbon atom and only a key be bonded on another carbon atom.Amino can be preferably-NH 2Perhaps especially by one or two-CH 2CH 2NH 2, phenyl or cyclohexyl replace.Preferably, amino links to each other with linear alkyl chain.These features cause especially stable solution, emulsion or dispersion liquid.
Described aminosilane of the present invention preferably comprises 4-17 carbon atom at whole intramolecularly, 1-4 nitrogen-atoms, 2-5 Sauerstoffatom and 13-37 hydrogen atom.Its boiling spread is preferably 100-280 ℃, and its molecular weight ranges is preferably 170-270g/mol.Its flash-point scope is preferably 70-120 ℃.This aminosilane is favourable because it does not produce the danger of fire in the normal handling process, and meanwhile with silicon fluoride in conjunction with causing the hydrophobicity of gained coating the best.
In further embodiment, by in conjunction with silicon fluoride and aminosilane (wherein separately according to composition of the present invention), follow acid treatment, the preparation feedback method for compositions solves problem of the present invention.Protonated reaction time range is preferably 1-20 minute, even preferred scope is 5-15 minute.Range of reaction temperature is preferably 40-80 ℃, even preferred scope is 60-75 ℃.
In further embodiment, the condensation product (master batch) of the silicon fluoride of general formula I of the residue by having general formula I I and/or III definition and the aminosilane of general formula I V, solve problem of the present invention, wherein said condensation product can be handled the mixture of described silicon fluoride and described aminosilane by catalysed promoted, especially obtains by acid treatment.
Preferably, condensation product is non-water.Preferably, condensation product only exists only in and contains the water less than 1wt%, in the especially preferred chemical system less than 0.1wt% water.Astoundingly, find that only the non-aqueous reaction product is hydrolyzable in the stage subsequently part of surface-protective agent (for example as).In addition, found to compare with the condensation product of in Aquo System, producing, this reaction product stable many (shelf-lifes).
Preferably, described condensation product is limpid, and demonstrates maximum 10% haze value.Can be according to ASTM D 1003, for example in cuvette, the solution example of 10mm thickness is measured mist degree in use.
Especially advantageously, in the presence of further hydrophilic silane, one or more silicon fluoride experience condensation reactions.Equally especially advantageously, do not having in the presence of the extra water, namely in the non-aqueous system, one or more silicon fluorides experience condensation reactions.Preferably, this hydrophilic silane is that specific inductivity is at least 5 polar material.Preferably, this silane also can comprise unit price organic group Z, for example epoxy group(ing).The molar ratio range of silicon fluoride and hydrophilic silane is preferably 20-1.Hydrophilic silane meets following general formula:
R 11R 12MeSi-Y-Z (formula VI)
R wherein 11And R 12Be independently selected from R 3Or Me and Z are polarity unit price organic groups.
Described condensation product of the present invention demonstrates high stability to chemical environment, this is because silicon fluoride and aminosilane are cross-linked to each other, meanwhile cause high stability solution, emulsion or dispersion liquid, the surfacing of and oleophobic hydrophobic with the height of this condensation product processing still is provided simultaneously.
Preferably, employed acid demonstrates the pK that scope is 3-7 aValue, especially scope is 3.5-5.5.If pK aBe worth too lowly, then crosslinking degree is too high, forms the insoluble of volume particle size too or can not dispersed particles.If pK aBe worth too highly, then crosslinking degree is not enough to form stabilizing solution, emulsion and dispersion liquid.
Acid is Lewis acid or Bronsted acid, and it is preferably selected from boric acid, etheric acid, citric acid, Ba Dousuan, formic acid, fumaric acid, R-Glyceric acid, oxyacetic acid, lactic acid, oxysuccinic acid, tartrate and/or acetic acid.
The shape of condensation product is preferably particle, and especially median particle is that 1-1000 nanometer, especially scope are the particle of 5-100 nanometer.The monodispersity scope of condensation product is preferably 1-15nm.Under the too big situation of granularity, become bad to intrabasement infiltration to be coated.In addition, the stability that contains the dispersion of this for example surface-protective agent form greater than preferred particulates is affected.
Condensation product preferably is present in the solvent system.This solvent system preferably demonstrates the pH that scope is 4-5.Preferably realize this pH by adding Lewis acid or Bronsted acid.
In further embodiment, solve problem of the present invention by the method that obtains condensation product of the present invention, it is characterized in that, which comprises at least and add sour step in the present composition.
Preferably, this method is non-water method, does not namely wherein add the method for additional water.
Preferably, acid to be added and the weight ratio of the present composition are 1: 1-1: in 4 scopes, especially 1: 1.5-1: in 2.5 scopes.In view of the crosslinking reaction heat release, therefore add among the acid or before, preferably do not provide extra heat, to prevent from being present in the sensitive composition deterioration in the composition yet.
In further embodiment, the method of silicon fluoride of formula I of the present invention that wherein has the residue of formula II and/or III definition by preparation solves problem of the present invention, it is characterized in that, the unsaturated C-C of hydrosilylation or C-O key, the then step of the residue that the alkoxide replacement links to each other with Siliciumatom after hydrosilylation.
In further embodiment, the surface-protective agent by containing composition of the present invention and/or further contain condensation product of the present invention for the common additives of surface-protective agent solves problem of the present invention.
The surface-protective agent that contains the silicon fluoride that is suitable for height polar solvent system is provided first.
Preferably, surface-protective agent of the present invention comprises that scope is the active ingredient of 20-40wt%.Active ingredient is condensation product of the present invention preferably.
Described surface-protective agent of the present invention can preferably include the mixture of solvent or solvent, and wherein the mixture of solvent or solvent is at least 30 at 20 ℃ of specific inductivity of measuring down.Especially advantageously be selected from alcohol, acetone, water, solvent or solvent mixture in ether or the N-methylformamide.The surfacing of having found the solvent system absorption of this high-k and being penetrated into the polarity maximum is for example in concrete or the Wingdale.Preferably, this solvent or the solvent mixture amount in surface-protective agent is in the 60-80wt% scope.
For this purpose, surface-protective agent of the present invention preferably includes maximum 5wt% at the solvent of 20 ℃ of specific inductivity maximum 29 of measuring down, meanwhile comprise 10wt% at least, 90wt% is at the solvent of 20 ℃ of specific inductivity at least 30 of measuring down especially at least.
Described surface-protective agent preferably includes the 0.1-10wt% additives known, for example be selected from silicone/siloxanes, acrylic compounds, melamine derivative, with the compound of wax or the mixture of compound, to adhere to hydrophobicity and the oleophobic property that also improves the surfacing of dipping on the surfacing better.
Preferably, surface-protective agent of the present invention demonstrates the pH value scope that scope is 3-6.5, to have and the substrate for example best consistency of sandstone, Wingdale or concrete and best efficient thereon.
If additive is selected from acrylic acid or the like, wax, silicone, extender and urethane, then the present invention is especially favourable.Preferably, the amount of additive is 0.5-5wt%, to improve overall performance.
For best hydrophobicity and the oleophobic property of surfacing of dipping and meanwhile provide surface-protective agent with stable solution, emulsion or dispersion, described surface-protective agent preferably includes solution, emulsion or the dispersion liquid of the dilution of composition, and/or condensation product of the present invention.Preferably, described surface-protective agent comprises that consumption is 0.1-15, the fluorinated compound of the present invention of preferred 1-7wt%, that is described silicon fluoride or master batch or composition or condensation product.
In the present invention, stable solution, emulsion or dispersion liquid refer to store 7 days under room temperature and normal pressure, in preferred 5 weeks (shelf-life) processes, do not demonstrate remarkable precipitation or the solution that is separated, emulsion or dispersion liquid.
In further embodiment, solve problem of the present invention by the method that obtains surface-protective agent of the present invention, described method comprises at least mixes the step that described composition or condensation product and the specific inductivity of measuring down at 20 ℃ are at least 30 solvent system and extra additive.
In last embodiment, the surfacing by handling with described surface-protective agent of the present invention solves problem of the present invention.
Described surfacing is preferably selected from natural stone, marble, sandstone, concrete, gravel, sand limestone, terra-cotta, clinker tile, split face block or brick.
Composition of the present invention can be on natural or artificial stone, at decorative element for example on the wall, on household implements, for example weave at textile material, on nonwoven material or the carpet, on leather, on plastics, on glass, on metal (for example as release coating), on pottery, on timber or paper with making coatings (for example have grease-proof, food discharge, easily cleaning, antifouling, refuse oil or refuse the water effect).Surface-protective agent of the present invention especially can be used as the construction safety agent.
Use oleophobic property and the hydrophobicity of contact angle measurement for Evaluation surface treated material.Toenol 1140 is at least 50 ° to the contact angle of air on the surface treated material, and water is at least 100 ° to the contact angle of air on the surface treated material.Can be under room temperature and normal pressure, use volume as the method for dripping of stopping of the drop of 0.5ml, use DSA 100 (Kr ü ss GmbH), measure contact angle.
Embodiment
Abbreviation:
FTS=3,3,4,4,5,5,6,6,7,7,8,8,8-, ten trifluoro octyltri-ethoxysilane (R f=C 6F 13)
3958=nine fluorine hexyls-1,1,2,2-H-Trimethoxy silane (R f=C 4F 9)
The AMMO=3-aminopropyl trimethoxysilane
HAC=acetic acid (100% (Glacial acetic acid))
B2858=seven fluorine isohexyls-1,1,2,2,3, the 3-H-Trimethoxy silane
FPM938=contains 48wt%3958,16wt%AMMO and 36wt%HAC
BPS939=contains 48wt%FTS, 16wt%AMMO and 36wt%HAC
Compare FPM938, the hydrophobic and oleophobic performance of 10 kinds of different batch of materials of BPS939 and composition thereof.
As general governing principle, batch of material is made up of following more or less:
94.9g softening water, 2.5g silicon fluoride, 1.3g Perlite and 1.3g Plextol.
Perlite is available from various sellers, and is volcanic glass.
Plextol is the aq suspension of thermoplastic acrylic polymer.
Following table shows the composition of the silane of different batch of materials.
The BPS939-batch of material:
The blend batch of material:
The batch of material numbering M (water) m(BPS 939) m(Perlite) m(Plextol)
001 94.92g 2.50g 1.40g 1.35g
002 94.95g 2.60g 1.36g 1.40g
003 95.02g 2.54g 1.30g 1.38g
004 94.90g 2.57g 1.35g 1.40g
005 94.89g 2.62g 1.30g 1.32g
006 94.90g 2.51g 1.31g 1.28g
007 94.96g 2.50g 1.31g 1.39g
008 94.96g 2.48g 1.39g 1.33g
009 94.92g 2.47g 1.30g 1.42g
010 94.91g 2.60g 1.30g 1.36g
The FPM338 batch of material
The raw material numbering m(VE-Wasser) m(FPM 938) m(Perlite) m(Plextol)
011 94.96g 2.50g 1.28g 1.30g
012 94.90g 2.45g 1.27g 1.40g
013 94.91g 2.51g 1.29g 1.43g
014 94.90g 2.60g 1.32g 1.28g
015 94.95g 2.58g 1.30g 1.25g
016 94.99g 2.48g 1.31g 1.25g
017 94.93g 2.46g 1.35g 1.39g
018 94.95g 2.55g 1.29g 1.33g
019 95.01g 2.48g 1.30g 1.28g
020 94.97g 2.43g 1.29g 1.30g
The blend batch of material:
The batch of material numbering M (water) m(BPS 939/FPM 938) m(Perlite) m(Plextol)
021 94.91g 1.32g/1.30g 1.35g 1.37g
022 95.00g 1.25g/1.23g 1.35g 1.37g
023 94.87g 1.21g/1.30g 1.25g 1.25g
024 94.89g 1.23g/1.26g 1.33g 1.30g
025 94.90g 1.30g/1.25g 1.39g 1.32g
026 94.92g 1.21g/1.30g 1.27g 1.25g
027 94.94g 1.27g/1.25g 1.31g 1.28g
028 94.95g 1.32g/1.30g 1.32g 1.41g
029 94.94g 1.22g/1.28g 1.26g 1.30g
030 94.96g 1.29g/1.24g 1.35g 1.35g
For the coating of sand limestone brick, these at first brush wiping.Determine three zones that evenly separate of 8cm * 11cm at brick.On each brick, coating batch of material BPS339, the batch of material of batch of material FPM 338 and blend.For each batch of material, with identical two bricks of batch of material coating.Twice each batch of material of coating on brick.During the first time, use paint brush, the consumption of coating 4.2g-7.2g.In the second time, after about 5 minutes, paint brush, at the consumption of brick coating 0.9g-3.0g.
Following table has been set forth experiment.Two different bricks for each batch of material are represented on " numbering " hurdle.Following hurdle always comprises two kinds of different weight that are illustrated in the weight of the batch of material of coating during first and second times.
Figure BDA0000055452880000121
After at room temperature storing 24 hours, make a service test.
Drip and three sunflower oil place trizonal on each on each piece brick three.After 5 minutes, by absorbing drop with cloth or paper handkerchief, remove drop.Evaluate the residue of each drop in the following manner:
0 has the visual stain of crown (corona), outward appearance humidity
1 have hardly crown, the visual stain of outward appearance humidity
2 visual stains do not have crown
3 brick part variable colors
4 almost do not have variable color
5 do not have visual stain
Fig. 1 shows the stain example for different grades.
The rating sum of calculating for each stain.Three refer to the maximum value of 15 attainable points for water and the maximum value of 15 attainable points for Sunflower Receptacle.For each batch of material, total score value is the grade sum of water and oil.
It below is the result's of all batch of materials form.Brick is represented on " numbering " hurdle.Three ratings of numerical value representative for each drop in each following unit of form.
Figure BDA0000055452880000131
Following table shows the final score value for each batch of material:
Figure BDA0000055452880000141
Can find out that according to this table the function of this blend is reproducibly own about the same good with BPS 339, and desired more much better than roughly 1: 1 mixture of two kinds of different silane.

Claims (26)

1. reactive composition, it comprises:
(a) have at least two kinds of different silicon fluorides: R of same general formula I separately Tf-SiX 3(formula I),
Wherein X be selected from alkoxyl group, halogen group, oximido, carboxyl, phenol oxygen base and polyether group and
R TfBe straight chain, side chain or the ring-type residue of general formula I I or III:
-Y-R f(formula II), or-Y-(SiR 1R 2O) xSiR 1R 2-Y-R f(formula III),
Wherein Y is selected from-(CH 2) n-,-CO 2-,-O-,-CONH-,-Ph-,-SO 2-and-SO 2The divalence organic moiety of NH-, wherein n is integer 1-30, R fBe the perfluorinated alkylidene of C2-C7 straight or branched, the difference of wherein said silicon fluoride is R fIn carbonatoms differ at least 2, R 1And R 2Be independently selected from the organic residue of unit price, x be integer 0-5 and
(b) aminosilane of at least a general formula I V: R a-SiR 3R 4R 5(formula IV),
R wherein aBe contain 1-7 carbon atom and at least one primary, secondary, uncle or season amino straight chain, side chain or cyclic alkyl residue, R 3And R 4Be independently selected from-R a,-OR 6And/or-R 6And
R 5Be-OR 6, and R 6Be straight chain, side chain or the cyclic alkyl residue that contains 1-3 carbon atom.
2. the composition of claim 1 is characterized in that, the amino described in the component (b) is protonated amino.
3. the composition of claim 1 is characterized in that, two kinds of different silicon fluorides are wherein to have the R of less carbon atom fThe silicon fluoride of base and the R that wherein has more carbon atom fThe weight ratio of the silicon fluoride of base is that 0.7-1.3 exists.
4. the composition of claim 1 is characterized in that, at least two kinds of different silane, R fBe respectively C4 and C6 base.
5. the composition of claim 1 is characterized in that, X is:
Be selected from the halogen group of F, Br, Cl and I,
Alkoxyl group OR 7, R wherein 7Be C1-C22 straight or branched alkylidene group,
Oximido R 8R 9C=N-O, wherein R 8And R 9Be independently selected from C1-C30 straight or branched alkylidene group, wherein R 8And R 9Can be identical or different,
Carboxyl R 10CO 2, R wherein 10Be C1-C30 straight or branched alkylidene group,
Phenol oxygen base M-Ph-O-, wherein M is hydrogen or unit price organic group, or
Contained one or more following repeated structural unit (CH by being selected from of C1-C30 straight or branched alkylidene group end-blocking 2CH 2O) qOr (CH 3CHCH 2O) qThe polyether group of polyalkylene oxide, wherein q is that scope is the numerical value of 1-100.
6. the composition of claim 1 is characterized in that, Y is the part that is selected from following :-(CH 2) 0-,-CO 2-,-(CH 2) o-CO 2-(CH 2) m-,-(CH 2) o-O-(CH 2) m,-(CH 2) o-CONH-(CH 2) m,-(CH 2) 0-Ph-(CH 2) m,-(CH 2) 0-SO 2-(CH 2) mWith-(CH 2) o-SO 2NH-(CH 2) m,-SO 2-O-,-SO 2NH-,-CH 2=CH-and-CH 2=CH-(CH 2) 0-, wherein o is that scope is the numerical value of 1-30, m is that scope is the numerical value of 0-30.
7. the composition of claim 6 is characterized in that, divalent organic group contains branched alkylidene.
8. the composition of claim 1 is characterized in that, R fBe:
(a) be selected from CF 3CF 2-, CF 3(CF 2) 3-, C 3F 7-, (CF 3) 2CF-, C 4F 9-, C 5F 11-, or C 6F 13-; Or
(b) the perfluorinated polyether group of general formula V: F-(CF 2) r-(OC 3F 6) s-(OC 2F 4) t-(OCF 2) u(formula V)
Wherein r is that scope is the integer of 1-3, and s, and t and u are that scope is the integer of 0-200 independently.
9. the composition of claim 1 is characterized in that, R 1Or R 2Be independently selected from C1-C30 straight or branched alkylidene group, contain the group of aromatic hydrocarbons, contain the group of aminoalkyl and contain the group of fluoroalkyl.
10. the composition of claim 1 is characterized in that, X, R 3, R 4And/or R 5Be independently selected from alkoxyl group.
11. the composition of claim 10 is characterized in that, described alkoxyl group is oxyethyl group or methoxyl group.
12. the composition of claim 1 is characterized in that, R among the formula I fThe mol ratio of the amino that exists among base and the formula IV is 2: 1-6: 1.
13. the composition of claim 12 is characterized in that, R among the formula I fThe mol ratio of the amino that exists among base and the formula IV is 2.5: 1-4: 1.
14. the composition of claim 1 is characterized in that, it further comprises the wetting ability silane that meets following general formula: R 11R 12MeSi-Y-Z (formula VI)
R wherein 11And R 12Be independently selected from R 3Or Me and Z are polarity unit price organic groups.
15. any one composition of claim 1-13 is characterized in that it comprises the acid of 20-50wt%.
16. the composition of claim 15 is characterized in that, it comprises the acid of 30-40wt%.
17. any one composition of claim 1-14 is characterized in that it is non-aqueous composition.
18. a method for preparing the reactive composition of claim 1 comprises silicon fluoride and aminosilane and then acid treatment in conjunction with definition in the claim 1.
19. the method for claim 18 is characterized in that, described silicon fluoride and/or aminosilane react with protonated form.
20. the method for claim 18 or 19 is in the non-aqueous reaction system.
21. have in the claim 1 condensation product of the aminosilane of the general formula I V of definition in the silicon fluoride of the general formula I of definition in the claim 1 of residue of the general formula I I of definition and/or III and the claim 1, the mixture that described condensation product is handled described silicon fluoride and described aminosilane by catalysed promoted obtains.
22. the condensation product of claim 21 is characterized in that, described condensation product obtains by the mixture of the described silicon fluoride of acid treatment and described aminosilane.
23. the condensation product of claim 21 or 22 is characterized in that, acid has the pK of 3-7 aValue.
24. the condensation product of claim 23 is characterized in that, acid has the pK of 4-5.5 aValue.
25. a surface-protective agent, it comprises the condensation product of the composition of claim 1 and/or claim 21 and further comprises common additives for surface-protective agent.
26. the surface-protective agent of claim 25 is characterized in that, it comprises the silicone/siloxanes that is selected from of 0.5-5wt%, acrylic compounds, the compound of melamine derivative and wax or the mixture of compound.
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